255970688 has 16 divisors (see below), whose sum is σ = 509941860. Its totient is φ = 127985280.

The previous prime is 255970661. The next prime is 255970697. The reversal of 255970688 is 886079552.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 999758 + ... + 1000013.

Almost surely, 2^255970688 is an apocalyptic number.

It is an amenable number.

255970688 is a deficient number, since it is larger than the sum of its proper divisors (253971172).

255970688 is an equidigital number, since it uses as much as digits as its factorization.

255970688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1999785 (or 1999773 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 50.

The square root of 255970688 is about 15999.0839737780. The cubic root of 255970688 is about 634.9361855396.

The spelling of 255970688 in words is "two hundred fifty-five million, nine hundred seventy thousand, six hundred eighty-eight".